Common stereotypes that prevent you from moving forward - it can be your strong belief in what should be the ideal relationship, how to behave like a loving woman, what can not be in our time, etc. You can subconsciously afraid of what will remain alone and will not be able to build a relationship with anyone (consider yourself too old, fear the label "divorced", etc.). You rapidly react to everything that does not fit your principles of building relationships and trying to preserve what has long lost its meaning.
You need to consistently make out all your relationships - analyze his motives. Determine when you act according to circumstances and really wanted to, but when you just follow the procedure worked out response actions and words partner.
If your relationship is constantly fails, then think - maybe you choose a certain type of people. Compare their partners - describe their appearance, personal characteristics, features of character. As a result, you get a generic image with similar features. Try a dip into childhood, to deal with childhood experiences - it will help you determine the true cause of their addiction (fear of loneliness, lack of attention, and so on.). Often repeat to yourself that you have long grown up, become independent, self-reliant and self-sufficient person. Listen to your desires - fix everything that you really want, and try to do it without wasting time on futile attempts to bind to a person with whom you are not very comfortable.